Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A touch sensor system using touch point vibration, the touch sensor system comprising: a first sensor bar which comprises a grid made from a piezoelectric material formed on one side surface thereof; a second sensor bar which comprises a grid made from a piezoelectric material formed on one side surface thereof; a touch plate having the first and second sensor bars respectively coupled to transversal (X) and longitudinal (Y) side surfaces thereof, and wherein the touch plate is patterned with a trench pattern in a matrix form that directly corresponds to the grid of the first sensor bar and the grid of the second sensor bar; a signal processing unit connected to the first and second sensor bars to receive an electric signal; and a touch point calculating unit which calculates a location of touch with respect to the touch plate and the trench pattern based on the electric signal received at the signal processing unit.
This touch sensor system uses vibration to detect touch points. It has two sensor bars, each with a grid of piezoelectric material on one side. These bars are attached perpendicularly to a touch plate, one along the X-axis and the other along the Y-axis. The touch plate surface has a trench pattern in a matrix form that corresponds directly to the grids on the sensor bars. When the touch plate is touched, the vibration is sensed by the piezoelectric grids. A signal processing unit receives electrical signals from the sensor bars. A touch point calculating unit then determines the touch location on the plate and trench pattern, based on those electrical signals.
2. The touch sensor system of claim 1 , wherein the touch plate is made from a material with a constant vibration attenuation coefficient.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a touch plate with a trench pattern and calculates the touch location, uses a touch plate constructed from a material that has a constant vibration attenuation coefficient. This ensures that the signal strength decreases predictably with distance from the touch, improving the accuracy of touch location calculations.
3. The touch sensor system of claim 1 , wherein the first and second sensor bars are coupled to one of front, side or rear surfaces of the touch plate.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a touch plate with a trench pattern and calculates the touch location, can have the sensor bars attached to the front, side, or rear surfaces of the touch plate. The placement choice impacts design and sensitivity but still allows the system to detect vibrations and calculate touch location.
4. The touch sensor system of claim 1 , further comprising a signal transmitting unit which transmits location information regarding the touch point calculated at the touch point calculating unit to outside.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a touch plate with a trench pattern and calculates the touch location, further includes a signal transmitting unit. This unit sends the calculated touch point location information to an external device or system for further processing or use.
5. The touch sensor system of claim 1 , wherein the grids are at distance ranging between 10 nm and 100 nm.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a touch plate with a trench pattern and calculates the touch location, features piezoelectric grids on the sensor bars that are spaced between 10 nanometers and 100 nanometers apart. This grid size allows for fine-grained detection of vibrations resulting from touch events on the touch plate.
6. A touch sensor system using touch point vibration, comprising: a first sensor bar having a piezoelectric grid formed on a side surface thereof; a second sensor unit having a piezoelectric grid formed on a side surface thereof, and connected at one end to an end of the first sensor bar in a perpendicular relation; a screen having the first and second sensor bars respectively coupled to transversal (X) and longitudinal (Y) side surfaces thereof, wherein the screen is patterned with a trench pattern in a matrix form that directly corresponds to the piezoelectric grid of the first sensor bar and the piezoelectric grid of the second sensor bar; a signal processing unit connected to the first and second sensor units to receive an electric signal; and a touch point calculating unit which calculates a location of touch with respect to the screen through which the touch is inputted and the trench pattern, based on the electric signal received at the signal processing unit.
This touch sensor system uses vibration to detect touch points. It includes two sensor bars, each with a grid of piezoelectric material. The second sensor bar is connected perpendicularly to the first. These bars are attached to a screen, one along the X-axis, one along the Y-axis. The screen's surface has a trench pattern that corresponds to the grids on the sensor bars. When the screen is touched, the vibration is sensed by the grids. A signal processing unit receives signals from the sensor bars. A touch point calculating unit determines the touch location on the screen and relative to the trench pattern based on the received signals.
7. The touch sensor system of claim 6 , further comprising a bar fixing unit coupled to an end of each of the first and second sensor bars to fix the first and second sensor bars at a perpendicular relation with each other.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a screen with a trench pattern and calculates the touch location, also includes a bar fixing unit. This unit is attached to the end of each sensor bar, and it maintains the perpendicular relationship between the two sensor bars, ensuring proper sensor alignment and accurate touch location detection.
8. The touch sensor system of claim 6 , further comprising a boundary detecting unit which perceives a touch made outside a boundary line of an end of each of the first and second bars.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a screen with a trench pattern and calculates the touch location, also includes a boundary detecting unit. This unit detects touches that occur outside the bounds of the sensor bars themselves, allowing the system to sense touches near the edges of the screen.
9. The touch sensor system of claim 6 , wherein the boundary detecting unit is a grid made from piezoelectric material.
In the touch sensor system with vibration-based touch detection and a boundary detecting unit, the boundary detecting unit is a grid made from piezoelectric material. Similar to the main sensor grids, this piezoelectric grid detects vibrations caused by touches near the sensor bar edges, extending the sensing area.
10. The touch sensor system of claim 6 , further comprising a signal transmitting unit which transmits location information about the touch point calculated at the touch point calculating unit to outside.
The touch sensor system described previously, which detects touch points via vibration using piezoelectric sensor bars attached to a screen with a trench pattern, calculates the touch location, and includes a boundary detecting unit, further includes a signal transmitting unit. This unit sends the calculated touch point information to an external system.
11. The touch sensor system of claim 6 , further comprising: a first additional side bar which is formed at a location facing the second sensor bar and connected to other end of the first sensor bar; and a second additional side bar which is formed at a location facing the first sensor bar and connected to the other end of the second sensor bar.
The touch sensor system described previously, which detects touch points via vibration using perpendicular piezoelectric sensor bars on a screen with a trench pattern, also includes two additional side bars. A first additional side bar is positioned opposite the second sensor bar and is connected to the other end of the first sensor bar. A second additional side bar is positioned opposite the first sensor bar and is connected to the other end of the second sensor bar. These additional bars can improve the overall vibration sensing and accuracy of touch detection.
12. The touch sensor system of claim 11 , wherein the first and second additional side bars each comprises a piezoelectric grid formed on a side surface thereof.
In the touch sensor system with the first and second additional side bars, each of these additional bars also has a piezoelectric grid formed on its side surface. This enhances their ability to detect vibrations and contribute to a more accurate determination of the touch location on the screen.
13. The touch sensor system of claim 11 , further comprising a signal transmitting unit which transmits location information of the touch point calculated at the touch point calculating unit to outside.
The touch sensor system described previously, which detects touch points via vibration using perpendicular piezoelectric sensor bars with additional side bars and calculates the touch location, further includes a signal transmitting unit. This unit sends the calculated touch location to an external system.
Unknown
December 30, 2014
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